Federal Tax ID - UK localisation

Hi All,

One of my client has this strange problem after he has upgraded to PL46. Whenver the client tries to create sales docs the system is asking to update the VAT number. The billing and shipping address of the BP is UK, Currecny is sterling and it is a UK localisation settings. I have gone through the different sceneraios mentioned in SAP note 990635, still no luck. Has anyone come up with a similar issue ?